(For older versions see the file list on sourceforge.)
Source packages (tar.bz2)
Download Version 1.3.0 (source tar.bz2 package)
As I don't know anything about packaging Yammi into a rpm, I don't provide any rpm packages myself.
However, I am more than happy to make rpm packages of Yammi packed by others available here:
other locations (possibly not having the latest version, but worth having a look at):
For the newest (and possibly unstable) version see the GIT repository.